
package com.java.java8.func.optional;


/**
 * https://www.cnblogs.com/zhangboyu/p/7580262.html
 * http://blog.tonycube.com/2015/10/java-java8-4-optional.html
 * https://www.runoob.com/java/java8-optional-class.html
 * https://openhome.cc/Gossip/Java/Optional.html
 *
 */
public class Demo1 {

}
